You will get the following error when creating Message Buffer possibly because the Issuer Name is not properly configured in your Service Bus namespace. 

{"The token provider was unable to provide a security token. Error:Code:401:SubCode:T2001:Detail:The issuer does not exist, or the secret or signature is invalid."}
    [System.IdentityModel.Tokens.SecurityTokenException]: {"The token provider was unable to provide a security token. Error:Code:401:SubCode:T2001:Detail:The issuer does not exist, or the secret or signature is invalid."}
    Data: {System.Collections.ListDictionaryInternal}
    HelpLink: null
    InnerException: {"The remote server returned an error: (401) Unauthorized."}
    Message: "The token provider was unable to provide a security token. Error:Code:401:SubCode:T2001:Detail:The issuer does not exist, or the secret or signature is invalid."
    Source: "Microsoft.ServiceBus"
    StackTrace: "   at Microsoft.ServiceBus.TokenProvider.ThrowException(String message, Exception innerException)\r\n   at Microsoft.ServiceBus.TokenProvider.GetAccessTokenCore(String appliesTo, String requestToken, String simpleAuthAssertionFormat, TimeSpan timeout, String& expiresIn)\r\n   at Microsoft.ServiceBus.TokenProvider.GetHttpAuthAccessTokenByAssertion(String appliesTo, String requestToken, String simpleAuthAssertionFormat, TimeSpan timeout)\r\n   at Microsoft.ServiceBus.SharedSecretTokenProvider.OnGetHttpAuthToken(String appliesTo, String action, TimeSpan timeout)\r\n   at Microsoft.ServiceBus.TokenProvider.GetHttpAuthToken(String appliesTo, String action, TimeSpan timeout)\r\n   at Microsoft.ServiceBus.HttpBufferClient.AddTokenToRequest(HttpWebRequest webRequest, TransportClientEndpointBehavior credential, String action)\r\n   at Microsoft.ServiceBus.HttpBufferClient.PutMessageBuffer(MessageBufferPolicy messageBufferPolicy)\r\n   at Microsoft.ServiceBus.HttpBufferClient.CreateMessageBuffer(Transpo
rtClientEndpointBehavior credential, Uri messageBufferUri, MessageBufferPolicy messageBufferPolicy)\r\n   at Microsoft.ServiceBus.MessageBufferClient.CreateMessageBuffer(TransportClientEndpointBehavior credential, Uri messageBufferUri, MessageBufferPolicy messageBufferPolicy, MessageVersion messageVersion)\r\n   at Microsoft.ServiceBus.MessageBufferClient.CreateMessageBuffer(TransportClientEndpointBehavior credential, Uri messageBufferUri, MessageBufferPolicy messageBufferPolicy)\r\n  

If you happen to experience an error like

"Error 1001. Exception occured while initializing the installation. FileNotFoundException: Could not load file or assembly c:\\windows\system32\files\aa" while adding custom parameter in custom action in MSI installer. This must be because you have not configure properly the custom property.If you should have more than 1 parameter, all must have backslash except for the last one (e.i /targetDir="[TARGETDIR]\" /customConfig="[CUSTOMCONFIG]" )

It's hard to know in an instant which files are still checked-out to who.

Below is the command to do this. 

tf.exe status "$/[your project]" /user:* /s:https://[tfs server] /recursive /login:[username],[password] > c:\tfsStatus.txt

 You might experienced this error while trying to insert records in Table Storage in a multi threaded environment. What you can do is to make it synchronous access in the TableServiceDataContext's AddObject and SaveChanges portion of your code. 

  lock (_lockable)
            {
                this.AddObject("MonitoringEntries", entry);
                this.SaveChanges();
            }

"An error occurred while processing this request."
    [System.Data.Services.Client.DataServiceRequestException]: "An error occurred while processing this request."
    Data: {System.Collections.ListDictionaryInternal}
    HelpLink: null
    InnerException: "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>\r\n<error xmlns=\"http://schemas.microsoft.com/ado/2007/08/dataservices/metadata\">\r\n  <code>EntityAlreadyExists</code>\r\n  <message xml:lang=\"en-US\">The specified entity already exists.\nRequestId:a01504ea-50e2-4e03-ae9e-1b3deefcc529\nTime:2010-07-21T09:47:19.7159778Z</message>\r\n</error>\r\n"
    Message: "An error occurred while processing this request."
    Source: "System.Data.Services.Client"
    StackTrace: "   at System.Data.Services.Client.DataServiceContext.SaveAsyncResult.HandleBatchResponse()\r\n   at System.Data.Services.Client.DataServiceContext.SaveAsyncResult.EndRequest()\r\n   at System.Data.Services.Client.DataServiceContext.SaveChanges(SaveChangesOptions options)\r\n   at System.Data.Services.Client.DataServiceContext.SaveChanges()\r\n   at

...
    TargetSite: {Void HandleBatchResponse()}

You may experience this error while inserting entity in Azure Table Storage if the value of you datetime field is set to DateTime.MinValue. 

"An error occurred while processing this request."
    [System.Data.Services.Client.DataServiceRequestException]: "An error occurred while processing this request."
    Data: {System.Collections.ListDictionaryInternal}
    HelpLink: null
    InnerException: "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>\r\n<error xmlns=\"http://schemas.microsoft.com/ado/2007/08/dataservices/metadata\">\r\n  <code>OutOfRangeInput</code>\r\n  <message xml:lang=\"en-US\">One of the request inputs is out of range.\nRequestId:3383f9e5-892d-48ef-9d2d-ef18de70a891\nTime:2010-07-16T08:00:44.6149987Z</message>\r\n</error>"
    Message: "An error occurred while processing this request."
    Source: "System.Data.Services.Client"
    StackTrace: "   at System.Data.Services.Client.DataServiceContext.SaveResult.HandleBatchResponse()\r\n   at System.Data.Services.Client.DataServiceContext.SaveResult.EndRequest()\r\n   at System.Data.Services.Client.DataServiceContext.SaveChanges(SaveChangesOptions options)\r\n   at System.Data.Services.Client.DataServiceContext.SaveChanges()\r\n